Structure–biodistribution relation of neutral 99mTc(CO)3-complexes with tridentate N-substituted derivatives of aminoethylglycine and phenylenediamine
摘要:
Derivatives of ethylenediamine-N-acetic acid (EDAA = N-aminoethylglycine = AEG) and ortho-phenylenediamine-N-acetic acid (PDAA) with uncharged substituents on one or both of the amines form neutral complexes with a [Tc-99m(CO)(3)](+)-moiety. We studied the influence of different modifications at the amines (e.g., with methyl, ethyl, butyl or benzyl groups) on the behaviour of the Tc-99m(CO)(3)-complexes in vivo in mice, with special focus on blood-brain barrier (BBB) passage. The complexes have been characterised by reversed phase HPLC, log P. electrophoresis and some of them also by LC-MS. LogP values of the Tc-99m-tricarbonyl complexes varied from -0.52 (AEG) to 2.5 (N'N'-dibenzyl-EDAA). With increasing lipophilicity, more of the activity was found in liver and intestines as compared to kidneys and urine for the more polar complexes. Brain uptake was found for the Tc-99m(CO)(3)-complexes with N,N'-dibutyl-ethylenediamine-N-acetic acid (0.34% of I.D. after 2 min) and ortho-phenylenediamine-N-acetic acid (0.22% of I.D. after 2 min). (c) 2006 Elsevier Ltd. All rights reserved.
Structure–biodistribution relation of neutral 99mTc(CO)3-complexes with tridentate N-substituted derivatives of aminoethylglycine and phenylenediamine
摘要:
Derivatives of ethylenediamine-N-acetic acid (EDAA = N-aminoethylglycine = AEG) and ortho-phenylenediamine-N-acetic acid (PDAA) with uncharged substituents on one or both of the amines form neutral complexes with a [Tc-99m(CO)(3)](+)-moiety. We studied the influence of different modifications at the amines (e.g., with methyl, ethyl, butyl or benzyl groups) on the behaviour of the Tc-99m(CO)(3)-complexes in vivo in mice, with special focus on blood-brain barrier (BBB) passage. The complexes have been characterised by reversed phase HPLC, log P. electrophoresis and some of them also by LC-MS. LogP values of the Tc-99m-tricarbonyl complexes varied from -0.52 (AEG) to 2.5 (N'N'-dibenzyl-EDAA). With increasing lipophilicity, more of the activity was found in liver and intestines as compared to kidneys and urine for the more polar complexes. Brain uptake was found for the Tc-99m(CO)(3)-complexes with N,N'-dibutyl-ethylenediamine-N-acetic acid (0.34% of I.D. after 2 min) and ortho-phenylenediamine-N-acetic acid (0.22% of I.D. after 2 min). (c) 2006 Elsevier Ltd. All rights reserved.
(3-OXO-3,4-DIHYDRO-QUINOXALIN-2-YL-AMINO)-BENZAMIDE DERIVATIVES AND RELATED COMPOUNDS AS GLYCOGEN PHOSPHORYLASE INHIBITORS FOR THE TREATMENT OF DIABETES AND OBESITY
申请人:JANSSEN PHARMACEUTICA N.V.
公开号:EP1711184A1
公开(公告)日:2006-10-18
[EN] (3-OXO-3, 4-DIHYDRO-QUINOXALIN-2-YL-AMINO) -BENZAMIDE DERIVATIVES AND RELATED COMPOUND AS GLYCOGEN PHOSPHORYLASE INHIBITORS FOR THE TREATMENT OF DIABETES AND OBESITY<br/>[FR] DERIVES DE (3-OXO-3, 4-DIHYDRO-QUINOXALIN-2-YL-AMINO)-BENZAMIDE ET COMPOSES AFFERENTS COMME INHIBITEURS DE LA GLYCOGENE PHOSPHORYLASE DANS LE TRAITEMENT DU DIABETE ET DE L'OBESITE
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2005067932A1
公开(公告)日:2005-07-28
The invention features pharmaceutically active quinoxalinones of formula (1), compositions containing them, and methods of making and using theme: Formula (I) wherein R1 is H, C 1-6 alkyl, or halo; R2 is H or halo; R3 is H, C 1-6 alkyl, X is N or CH; Y is a covalent bond, -NHCO- or -CONH-; Z is phenyl or a 5 or 6-membered heterocyclyl with between l and 2 heteroatoms independently selected from N, O, and S; and n is 0, 1 or 2; or a pharmaceutically acceptable salt, ester, amide, hydrate, or solvate thereof; as well as their use as glycogen phosphorylase inhibitors for the treatment of i diabetes and obesity.